2161409040

Names of 2161409040

• Cardinal: 2161409040 can be written as Two billion, one hundred sixty-one million, four hundred nine thousand and forty.

Scientific notation

• Scientific notation: 2.16140904 × 10⁹

Factors of 2161409040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 428868

Divisors of 2161409040

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 35 36 40 42 45 48 56 60 63 70 72 80 84 90 105 112 120 126 140 144 168 180 210 240 252 280 315 336 360 420 504 560 630 720 840 1008 1260 1680 2520 5040 428851 857702 1286553 1715404 2144255 2573106 3001957 3430808 3859659 4288510 5146212 6003914 6432765 6861616 7719318 8577020 9005871 10292424 12007828 12865530 15009785 15438636 17154040 18011742 19298295 20584848 24015656 25731060 27017613 30019570 30877272 34308080 36023484 38596590 45029355 48031312 51462120 54035226 60039140 61754544 72046968 77193180 90058710 102924240 108070452 120078280 135088065 144093936 154386360 180117420 216140904 240156560 270176130 308772720 360234840 432281808 540352260 720469680 1080704520 2161409040
• Sum of all divisors σ(n): 8295713088
• Sum of proper divisors (its aliquot sum) s(n): 6134304048
• 2161409040 is an abundant number, because the sum of its proper divisors (6134304048) is greater than itself. Its abundance is 3972895008

Bases of 2161409040

• Binary: 10000000110101000111110000010000₂
• Hexadecimal: 0x80D47C10
• Base-36: ZQUHW0

Squares and roots of 2161409040

• 2161409040 squared (2161409040²) is 4671689038193721600
• 2161409040 cubed (2161409040³) is 10097430919220815137483264000
• The square root of 2161409040 is 46490.9565399551
• The cube root of 2161409040 is 1292.9418348341

Scales and comparisons

• 2,161,409,040 seconds is equal to 68 years, 37 weeks, 5 days, 7 hours, 24 minutes.
• To count from 1 to 2,161,409,040 would take you about one hundred thirty-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 2161409040 cubic inches would be around 107.7 feet tall.

Recreational maths with 2161409040

• 2161409040 backwards is 0409041612
• The number of decimal digits it has is: 10
• The sum of 2161409040's digits is 27
• More coming soon!